Mining machine



F. CARTLIDGE MINING MACHINE Nov. 5, 1929.

Original Filed Jan. '7, 1918 7 Sheets-Sheet Nov. 5, 1929. F. CARTLIDGE MINING MACHINE Original Filed Jan. 7," 1918 7 Sheets-Sheet 2 Nov; 5, 1939.v F. CA'RTLIDGE 1,734,938

MINING MACHINE Original Filed Jan. 7, 1918 7 Sheets-Sheet 5 Nov. 5; 1929. F. CARTLIDGE MINING MACHINE Original Filed Jan 7, 1918 "r Sheets-Sheet 5 Nov. 5, 1929.

F. CARTLIDGE MINING MACHINE Original Filed Jan. 7, 1918 7 Sheets-Sheet 6 Nov. 5, 1929. F. CARTLIDGE MINING MACHINE Original Filed Jan. 7, 1918 7 Sheets-Sheet 7 mww Nmw WNW Wm u% @RN 9w Nu m x N M m NM L Patented Nov. 5, 1929 UNITED, STATES PATENT OFFICE FRANK CARTLIDGE, OF CLAREMONT, NEW HAMPSHIRE, ASSIGNOR 'IO SULLIVAN MACHINERY COMPANY, A CORPORATION OF MASSACHUSETTS MINING MACHINE Application filed January 7, 1918, Serial No. 210,696. Renewed February 4, 1927.

My invention relates to mining machines. My invention has for its object to provide an improved machine adapted to use at will to insert either a vertical or a horizontal cut in the face of an entry. A further object of my invention is to produce an improved machine of this character which may be transported "from place to place upon a suitable truck, and maintained upon that truck during the several cutting operations. A still further object of my invention is to provide an improved machine wherein the cutting mechanism may be fed or adjusted expeditiously and with great facility into the desiredrelations with respect to the face, either when undercutting or shear cutting, the means for adjusting the machine preferably being power operated. Another object of my invention is to provide an ii'nproved machine adapted to use as an undercutter, which also provided with improved means whereby the bottom of the entry may be maintained at the desired level without supplemental shooting, etc., or whereby the undercut may be inserted upon widely different levels or inclinations relative to the track. A still further object of my invention is to provide an improved machine ot the character set forth which is especially adapted to use in the cutting of room necks leading from the entry, or to use as a track mounted longwall machii all as conditions may require. A still. tuit ier object of my invention is to provide a machine of improved and simplified construction which, while of a rugged character and well adapted to withstand the hard usage to which such machines are subjected in service, is also of. such construction that it may be very readily and cheaply manufactured and con veniently transported from place to place and adjusted into its several position with great tacilityand dispatch. These and other objects of my invention will, however, hereinafter more fully appear.

In the accompanying drawings, I have shown one embodiment which my invention may assume in practice. It will be understood, however, that this form of my improvement is used only for purposes of illustration and that the invention itself may be modified and embodied in various other forms without departing from its spirit.

In the drawings of this illustrative embodi ment,-

Fig. 1 is a plan view of the improved machine when adjusted for undercutting and in transport position, certain parts of the mechanism being broken away to facilitate illustration.

Fig. 2 is a side elevation of the machine when in the same position, certain parts of the mechanism here being omitted or broken away to facilitate illustration.

Fig. 3 is a plan view of the machine, similar to Fig. 1, but showing the machine adjusted for shearing, certain parts herein also being omitted to facilitate illustration.

Fig. 4 is a side elevation of the machine wish the same is in the position shown in Fig. 3.

Fig. 5 is a detail partial sectional view taken substantially on line 55 of Fig. 1.

Fig. 6 is a rear elevation, partially in section, of the machine shown in Fig. 1.

Fig. 7 is an ei'ilarged detail view of the rack operating mechanism shown in Figs. 1 and 3.

Fig. 8 is an enlarged detail view, partially in section, taken substantially on line 8--8 of Fig. 1.

F ig. 9 is an enlarged detail view, partially in section, taken substantially on line 9-9 of Fig. 2.

Fig. 10 is an enlarged detail end elevation, partially in section, showing the slide adjusting means.

Fig. 11 is a similarly enlarged side elevation showing this mechanism.

Fig. 12 is a simplified diagrammatic plan view of the machine when adjusted for shearing and in transport position in an entry.

Fig. 13 is a simplified diagrammatic side elevation showing the cutter bar in position to make its shearing cut.

Fig. 14 is a similar view showing the cutter bar at the completion of its initial shearing cut.

Fig. 15 is a similar View showing the cutter bar at the completion of its second or vertical swinging cut.

adjustable clutch mechanism 23. Thus, it will be observed that when desired, through a suitable manipulation of the clutch mechanism 23 and the controller handle 9, power may be supplied from the motor 7 to raise or lower the support 11 relative to the truck frame 1 or the support may be held in various tilted positions. It will also be observed that in order that this adjustment may take place while the truck i at rest, I have also provided suitable adjustable clutches 24 on the ends of the shaft 6, by means of which the truck driving mechanism may, obviously, be disconnected from the motor and the latter thereafter operated in one direction or reversed when it may be necessary in adjusting the support 1.1.

As shown in Figs. 1 and 2, it will be noted that the support 11 carries a suitable plate 25 which is centrally swiveled thereon at 26 and is likewise horizontally disposed and adapted to act as a support. As shown, this plate has rigidly connected to it, as by means of suitable bracing and supporting means 27 and 28, a suitable upstanding, elongated and longitudinally extending guiding and feed in frame 29, preferably comprising a plurality of parallel longitudinally disposed frame members 30 rigidly connected by a transverse plate 31 in such a manner as to form a rigid structure relative to which the mining machine, hereinafter described, and its operating motor 32 which i of the usual reversible type, may be adjusted longitudinally. As

r shown in Fig. 6, the motor 32 of the mining machine is disposed longitudinally of the frame and mounted on a suitable supporting plate 33 which is itself adapted to be slid bodily along suitable guidewa-ys 34 formed on the supporting and guiding frame 29. Obviously, the motor and its frame 33 may be thu adjusted in various ways. In a preferred form, however, the power necessary to make this adjustment is derived from the motor 32 and suitable transmission mechanism is provided whereby the motor may be adapted to feed the frame in either direction.

In the form of my invention shown, it will be observed (Fig. 6) that the rear end of the armature shaft 35 carries a beveled gear 36 constantly meshing with a plurality of oppositely disposed beveled gears 37 and 38, which are in turn carried on a suitable trans verse shaft 39 journaled in bearings 40, connected to the motor frame or the member 33, and freely rotatable at will with either of the gears 3'? and 38, depending upon the position of an adjustable clutch mechanism 41. (See Fig. 2.) As shown, this shaft 39 is vertically disposed and provided at its upper end with a worm 42 meshing with a suitable worm gear 43. As illustrated, this Worm gear 43 is carried upon a horizontally and longitudinally disposed shaft 44 j ournaled on the support 33 and carrying on its opposite end a worm 4-5 meshing with a worm gear 46. This worm gear 46 is in turn carried on a horizontally and transversely disposed shaft 47, likewise journaled on the support and having on its opposite extremity a worm 48 meshing with a worm gear 49 carried on a transverse shaft 50. As shown in Fig. 7, this transverse shaft 50 carries pinions 51 on its opposite ends, which in turn mesh with rack surfaces 52 formed on the members 30. Thus, it will be observed that the rotation of the ari'nature shaft 35 of the motor 32 may be transmitted in such a manner as to cause the motor to be fed bodily relative to the supporting and guiding frame 30, 31, and that through manipulation of the clutch mecha nism including the clutch lever 41, the motor may be fed in either direction or disconnected in such a manner as to remain stationary in any given position. Obviously, the movement of the motor may also be controlled through the action of a suitable controller 53, which of a type similar to the controller-8 and in turn controlled through manipulation of a suitable controller handle 54.

Operatively connected to the motor 32 and bodily movable therewith relative to the supporting and guiding means 30, 31, is the cutting mechanism. As shown in Figs. 1 and 2, this cutting mechanism includes a cutter bar carrying the usual endless cutter chain 56, which is in turn equipped with the usual cutter bits 57 and adapted to be actuated by the rotation of a suitable chain driving sprocket 58. In the form of my invention shown, this chain driving sprocket is connected to the front end of the armature shaft 35 through beveled gears 59 and 60 of which the latter is connected directly to the sprocket through a suitable shaft 61, which is in turn vertically disposed in a suitable bracket or head 62, preferably swiveled on the front end of the mefor shaft. As shown, a clutch 63 is herein also provided between this shaft 61 and the chain driving sprocket 58 in such a manner that the cutter chain may be disconnected at will from the driving motor 32, as for instance when the latter is utilized to drive the feeding mechanism. However, it will be clearly apparent that when desired this clutch 63 may be connected at the same time that the motor 32 is operated, in such a manner that the cutter chain will be caused to rotate and cut the coal simultaneously with the forward feeding movement of the cutter chain and motor relative to the supporting and guiding elements 30, 31.

In my improvement, means are also provided whereby the cutter bar 55 may be adjusted angularly about the shaft 61 as an axis. For this purpose, it will be noted that the cutter bar 55 is provided with a bracket 64 (Figs. 1 and 2) which is journaled on the lower end of the shaft 61, and is also equipped with an arcuate rack 65 meshing with a pinion rect-ionto efi'ect its connection again, in such a manner as to cause the bar 55 to be swung downward from the position shown in Fig. 14 to the position shown in Fig. 15, so that, as the cutter chain continues to rotate during the swinging movement, an arcuate kerf is cut until the parts occupy the position shown in 15. hen this position is reached, the clutch 73 is again actuated to disconnect the mechanism for angling the bar, and the clutch controlling member 41 is actuated rcversely in such a manner as to cause the cutting mechanism to be fed rearward relative to the rack and thereby, as the cutter chain continues to rotate, cut out the remaining uncut portion of the kerf shown in Fig. 15, the operation continuing until the parts occupy the position shown in Fig. 16. When in this position and after a reversal of the motor, obviously if desired, by a simple further operation of the clutch 73 to throw it in, the bar may be returned to its normal or transport position shown in Fig. l and the machine transported on its truck to another entry, the movement of the truck then being controlled by the controller handle 9, 10.

In the use of my improved machine as a shearer, it may, however, be desirable to cut a vertical kerf in the side wall of an entry, as for instance in starting a room neck. Then it is desired to out such a kerf, it is only neces sary to remove the extension 10 of the controller handle and swing the entire mechanism about on the swivel member 25 from the transport position shown in Fig. 12 to the position shown in Fig. 17 and thereafter fix the jack 83in engagement with the roof and bottom, whereupon the entire cutting mechanism may be operated to insert a series of kerlts such as above described, in the side of the entry. Moreover, through the use of this swivel mounting, it is also possible to adapt the machine to cutting a vertical lrerf in an effective manner, even although the the tracks are not laid at the left hand side of the entry as shown in Fig. 12. For instance, the track rails may be laid at the right hand side of the entry, as shown in Fig. 18, in which case, with the bar disposed at the right hand side of the machine, as shown .in Fig. 12, the kerf would be cut at'a point too closely adjacent the right hand rib. However, through the use of my improved swivel mechanism, it will be noted that the entire cutting mechanism may be turned about this swivel in such a manner as to bring the end of the cutter bar more closely adjacent the center line of the entry and thus enable the end of the same at the completion of the shearing cut to lie in the center of the entry, or to intersect the center line of the entry in such a manner as to insure better results from shooting the coal. Obviously, through the provision of this swivelmechanism, a shear cut may also be inserted at practically any point in either rib of an entry or room or in a face substan: tially parallel to the track, by simply rotating the cutting mechanism into any desired angular position relative to the truck.

In the use of my improved construction in undercutting, substantially the same mechanisms are employed, and the cut is made in substantially the same manner. However, it will be observed that it is necessary for the cutter bar to be adjusted from the vertical position for making a shear cut to the horizontal position necessary to an undercut. This adjustment is readily accomplished through the utilization of the swivel mount ing of the cutter bar relative to the front end of the armature shaft of the motor, it being possible to swing the entire frame 62 and the cutter'bar from one position to another when ever desired by simply adjusting the clutch controlling the connection of the pinion when the motor 32 is operating in the desired direction. For instance, with the cutter bar in its vertical or shearing position shown in Fig. 3, it is'only necessary to'adjust this clutch and properly control the motor in order to swing the bar fromthat vertical position to the horizontal position desired in undercutting and shown, for instance, in Fig. 21 When the parts are in this position, it will be obvious that, the motor 32 being reversed from its direction of rotation during the downward swing, through the-actuation of the swinging mechanism for the bar, above oescribed, the latter may be adjusted angu larly into the position shown in Figure 19 in readiness to make its sumping or starting out.

Thereafter, the motor 32 being again reversed it will also be evident that in order to reciproa cate the bar to makethis cut, the clutch 63" controlling the cutter chain is next operated,

as well as the clutch controlling member ell, in such a manneras to cause the bar to move into the coal while its cutter chain is rotating, to produce the cut shown in Fig. 20. When the cutter bar reaches the position shown in that figure, the clutch 4:1 is again operated in such a manner as to disconnect the forward shown in Fig. 20 to the position shownin Fig. 22, and thereby complete the out.

In the use of my improved mechanism as an undercutter, it will also be evident that,

as above described connection with the use of the same as a shearer, the entire mechanism may be swung at right angles to the track, as shown in Fig. 23, and the ack 83 lo' gw ill m chinal W la i may i r in Figs. 24 to 26, inclusiye, it will also he evi deni that the mechanism may he used to out out a room neck at eitherside of the machine, the utt r ch n and fo wa d f ed ng mech: ani m hen being op ra-ted simultaneous y in c.112 l am erastoi swing t e bar o d he desir d r t t e l irne that the a is fe forwa d A a esult f thi mo em t,

ob 011.5 5], nward ut of pract al y a y desi d curvature may be produced, or the bar may b inserted as sh wn Fig- 2 s bsta' y at ang es to he rack s t at by amply ree p osating h mac in rearrd along the tri ds imderc t Q vsuflif t en h :to form the Po 1' ec m y e i li'oduced Q ioli ly, i des r th a may 189 he rims in ed at e her side of t ma hine and mi un le hal r t na ur of a 'lqe ira l cut my e prod ced, the ma h then nom nating ubsiantia y a m unt d It will also be evident il by th provision of any uita le means, as, or in tan e, e n -in s r rat ons .85 n th p te 11 and he plate. 25, a a 90- np rai' ns Pin 85 ih s i my be 1s i a y deified Posi ion Qf djustment- 1 th ris of m i pr e? inst uc o n ad an a o ao s derabl impo ane when w d rar i g i Q a-iai d hi'ol h the us of hQm an-s or a justing we le e of th plat-,- m .11, s b 1 do ng it s po sib e is in- La n the bQi Q by carti substa t a i129 same 'l hii al m iiate any necessity f r shoo ing th F n-ou wi l o d nar 1 1'? b we n the t of th mil n he n om 95 ost machin Tl i e dily co nlia s n my m r v d na wiw a shown in Fi by mply ev t ng he r a oi platiorin l1 thereby bringing illie front end of har substantially into contact Ywiizh the mine bottom prior Lethe heginning of the nndercngso {that when {shemachineisadyanced bodily lielillllYQ tofhe snpporiing and guiding frame 3.0, 31, the bar nsed to cut slightlyfldownward and into ixl e coal which woiild reniain uncut when the bar was operated only on a leyel above the level ,the l-mgk, Throiigh a reyerseloperion of this means, it .alsofeyident, as shown in igz' 2-8, ,t'hat'ihe ii i end of the bar Ina-y where a d t ons require such an .ggvdjnspn enjo, in such manner @to 013113 over s i iruci z i or i a'pi'i hins seam} u the iroyisign oi'nlyiinproved'ad .fili jiistinglineans, will beoloseryed that a far wi derra of adjiisrinenb of the cutter bar ss bleflnd that not only isall necesh -se arate :S hQ Qting of coal un- 'l e'rf entirely obviated, but that possible to adapt the machine .to

more iii ifie' iiii e i iii ils wherein it is other-wise plainly indicated in c zidy-isible for the outer end of the cutter half to be slightly raised during the undercut: ting operation.

As shown in Figs. 2 9 and 30,, it will also he observed that through the utilization of the swivel mounting for ihe cuttingmechanism, whereby the latter may he adjusted relatiye to ,the front end of the arinaturfl Shaft, it is also possible ,to vary the, angle of the when the same is used to cut at the side of the machine, as for instance when the same is cutting as shown in Fig. 26, it only being necessary to throw in the clutch controlling the gear SOand effect rotation of the motor in the des ed di e tion i order t swing i119 cotter bar up or down, as desired. For in; stance, if it i desir d to swing the bar down: ward, as when it is desired to out a lzerf at a downwardly sloping angle from {he track, this may be readily accomplished, the parts then assuming the position shown in Fig. 2-9.; while when it is desired to cut a horizontal keri and the bar is disposed an angle, this is readily accomplished by adjusi-ing the into the posit on h wn in ig.- 8.0,

i As a result of my improved construction, itwill be noted that .amaahin is produc which is a,clap;ted lo out eithe a shear ut hora horizon l undercu or ,orsrcn whenever desired, h ma hine ther y being a apte to .95 Quttingin th se te iito; s-wbe s on y ashear cut is a l r it and the L m ad pted o cutt ng in hos to "t ri s wherei e ther an und ut o as ,r -utxan y i d s red, or

in hose t r i r es where n, 1min 11. "1 ter of the coal, i s :dQSiifllll? IiSQlLt i ea ou and a ho i o ta ou o eith r synet wi s b bs ved tha th u h he Pro: ision o my mp o edmesiwnismi i isms.- s l to o an ndercut subs anti lly up n 95 h m ne bo tom, a d to inser h 1mm; at any desired angle either up or down when the undercut is nadein fronfu' of ,the machine,

as in entry driving, or at the side of the inachine when cutting a room neck, or when ihe 4119 machine is operated a" monnted longwa ll cotter. Through the pno ision .of nly iin- Proved im -means, it ill'be n t d no each and every 'adjnst neni of {she mac l'ne m y, if des re e ma under m p w mf 11-315 the machine, so that the adjnstnient niay ad 1 13 w sma l fa li y? bu i efi/ quickly, in such a in anner to enable lar 'e number of places ;t o', he out in ashiglit Tl ego and other advaniage of my in 'piioyed ,con- 12o struciion will, however, he clearly apparent to those skilled in theartl r I h appen d cla ms he i 's l ng udinal and transverseare used, with reierence to axes, in phe'sense ofextending lo {51- 3. tndinally of the n achil fi i s a whole, vtrailsyersely of ,the machine as",a whole, 1i

themselves.

f I have in ,ihis ,applicafgion c153 described one embodiment which my invention may assume in practice, it will be understood that this form of. the same is used for purposes of illustration and that'the invention may be modified and embodied in various other forms without departing from its spirit or the scope of the appended claims.

hat I claim as new and desire to secure by Letters Patent is:

1. In a mining machine, a support, cutting mechanism thereon including a swiveled cutter bar arrying a cutter chain, said bar being adjustable bodily into cutting position in a plurality of intersecting planes to position the same for the cutting of kerfs intersecting in lines extending longitudinally of said support, a motor for operating saidcutter chain, and means operable by said motor to eli ect said bodily movement of said bar to the desired plane and to swing said bar in any plane to which it may be moved.

2. In a mining machine, a vtrucl-z, longitudinally disposed guiding means swiveled thereon about an axis parallel to the plane of said guiding means, cutting means movable longitudinally of said guiding means and including a motor and a pivoted cutter bar, and means whereby the pivot of said cutter bar may be bodily rotated by power from said motor.v

3. In a mining machine, a wheeled support, longitudinally extending guiding means thereon, a motor reciprocable between the ends of said guiding means, motor reciprocating means including a rack carried by said guiding means, and cutting mechanism operati'vely connected to said motor including a forwardly extending vertically disposed horizontally pivoted cutter bar.

4. In a mining machine, longitudinally extending guiding means, a motor reciprocable relative to said guiding means and between 'the ends thereof, said motor having a power shaft disposed parallel to its path of reciprocation, motor reciprocating means including a power connection with said motor, cutting mechanism operatively connected to said motor including a forwardly extending vertically disposed horizontally pivoted cutter bar, and means for swinging said bar about its-pivot.

5. In a mining machine, a support, guiding means thereon, a motor reciprocable relative' to said guiding means and between the ends'thereof, cutting mechanism operatively connected to said motor and including a pivoted longitudinally extending bar, means operable by said motor for rotating the pivot of said bar about a longitudinally disposed .axis,-and means for swinging said bar about its} pivot.

6, 111 a miningmachine, a support, substa'ntially horizontally extending guiding means thereon, a motor reciprocable relative to said guiding meansand between the ends thereof, cutting mechanism operatively connected to said motor including a pivoted longitudinally extending bar, power operated means for rotating the pivot of said bar about a longitudinally disposed axis, and power operat' d means for swinging said bar about its pivot.

7. In a mining machine, a support, guiding means thereon, a motor reciprocable relative to said guiding means and between the ends thereof, cutting mechanism operatively connected to said motor and including a pivoted bar extending parallel to said guiding means, motor operated means for rotating the pivot of said bar about an axis disposed parallel to the direction of said guiding means, means for swinging said bar about its pivot, and motor operated mechanism for re ciprocating said motor relative to said guiding means.

8. In a mining machine, a support, substantially horizontally extending guiding means thereon, a motor reciprocable relative to said guiding means and between the opposite ends thereof, cutting mechanism operatively connected to said motor and including a pivoted longitudinally extending bar, motor operated means for rotating the pivot of said bar about a longitudinally disposed axis, and means operated by said motor for swinging said bar about its pivot.

-9. In a mining n achine, a support guiding means thereon, a motor reciprocable relative to said guiding means, cutting mechanism operatively connected to said motor and including a longitudinally extending pivoted cutter bar, means operable by said motor for rotating said bar about a longitudinally disposed axis parallel to the plane of the bar, means for swinging said barabout its pivot, and means operated by the motor for reciprocating said motor relative to said guiding means.

10. In a mining machine, a support, guiding means thereon, a motor reciprocable relative to said guiding means and between the ends thereof, cutting meehanism operatively connected to'said motor and including a longitudinally extending pivoted cutter bar, power operated means for rotating said bar about a longitudinally disposed axis including a driving connection with said motor, power operated means for swinging said bar about its pivot, and power operated means for reciprocating said motor relative to said guiding means including mechanical driving connections between said motor and said guiding means.

11. In a mining machine, a support, longitudinally extending guiding means thereon, a motor reciprocable in said guiding means and between the ends thereof, motor reci rocating means driven from said motor and including a motor rotated member and means traversed thereby in either direction 24. In a mining machine, a wheeled truck, guiding means pivotally mounted thereon and movable angularly relative thereto, a motor reciprocable on said guiding means, motor reciprocating means, cutting mechanism operatively connected to said motor and including a forwardly extending pivoted cutter bar, means driven by said motor for adjusting said bar into either a horizontal or a vertical position, and means driven by said motor for swinging said bar about its pivot when in either position.

25. In a mining machine, a truck, guiding means thereon, a motor reciprocable relative to said guiding means, cutting mechanism operatively connected to said motor and reciprocable therewith including a plane cutter bar disposable in a verticle plane and at an angle relative to said motor, and a aclr operatively associated with said guiding means and adapted to brace the latter.

26. In a mining machine, a truck, elongated guiding means thereon, a motor reciprocable relative to said guiding means, cutting mechanism operatively connected to said motor and reciprocable therewith including a plane cutter bar disposable in a vertical plane at an angle relative to said motor, and a ack operatively associated with said guiding means and located adjacent the front end thereof.

27. In a mining machine, a truck. guiding means pivotally mounted thereon for move ment about a vertical axis and projecting forwardly therefrom, cutting mechanism reciprocable in a substantially horizontal plane relative to said guiding means between positions in which it respectively overlies and is disposed wholly in advance of said truck, said cutting mechanism including a motor and a horizontally pivoted vertically disposed plane cutter bar driven thereby, means for maintaining said guiding means stationary in a given angular position, means driven by said motor whereby the same may be reciprocated, and means for swinging said bar about its pivot operated by said motor.

28. In a mining machine, a truck, elongated guiding means thereon, a motor reciprocable relative to said guiding means, cutting mechanism operatively connected to said motor and reciprocable therewith including a cutter bar disposable in a vertical plane at an angle to the horizontal and relative to said motor, and a jack pivotally mounted on said guiding means adjacent the front end thereof.

' 29. In a mining machine, a truck, guiding means for which said truck constitutes the sole support during transport carried on said truck and normally extending longitudinally a substantial distance beyond the front end of the same, a motor reciprocable relative to said guiding means, cutting mechanism operatively connected to said motor and including a pivoted cutter bar, operative connections between said motor and said guiding means whereby the former is reciprocated relative to the latter to position said motor wholly beyond the front end of the truck, and means for swinging said bar about its pivot when said motor is so disposed.

30. In a mining machine, a truck, guiding means swiveled thereon for horizontal swinging movement relative thereto and normally extending longitudinally a substantial distance beyond the front end of the same, said truck providing the entire support for said guiding means during transport, a motor reciprocable relative to said guiding means, cutting mechanism operatively connected to said motor and including a pivoted cutter bar, operative connections between said motor and said guiding means whereby the former is reciprocated relative to the latter to position said motor wholly beyond the front end of the truck, and means for swinging said bar about its pivot when said motor is so disposed.

31. In a mining machine, a. truck, longitudinally disposed guiding means thereon, cutting mechanism movable longitudinally of said guiding means and including a pivoted cutter bar, and means whereby said cutter bar may be swung on its pivot beneath said guiding means and when between the ends of the latter.

32. In a mining machine, a truck, longitudinally disposed guiding means thereon eX- tending forwardly therefrom for a substantial distance, cutting mechanism movable longitudinally of said guiding means and including a pivoted cutter bar, and means whereby said cutter bar may be swung on its pivot above or below said guiding means and when between the ends of the latter.

33. In a mining machine, a truck, longitudinally disposed guiding means thereon extending forwardly for a substantial distance, cutting mechanism movable longitudinally of said guiding means and including a pivoted cutter bar, and means whereby said cutter bar may be swung into a plane disposed beneath said guiding means or in a plane at right angles to said plane and when between the ends of the latter.

34. In a mining machine, a truck, pivoted longitudinally disposed guiding means there on extending forwardly therefrom for a substantial distance, cutting mechanism movable longitudinally of said guiding means and including a pivoted cutter bar, and means whereby said cutter bar may be swung on its pivot beneath said guiding means and when between the ends of the latter.

35. In a. mining machine, a truck, longitudinally disposed guiding means thereon, bracing means adjacent the forward end thereof. cutting mechanism movable longitudinally of said guiding means and includa pivoted cutter bar, and means whereby said cutter bar may be swung on its pivot beneath said guiding means and when between the ends of the latter.

36. In a mining machine, a truck, longitudinally disposed guiding means thereon extending forwardly therefrom for a substantial distance, cutt ng mechanism movable longitudinally of said guiding means and including apivoted cutter bar, and motor operated means whereby said cutter bar may be swung on its pivot beneath said guiding means and when betweenthe ends ofthe' latter. 1

- 37. Ina mining apparatus,atruclgguiding means thereon, cutting apparatus movable relative to said guiding means during cutting 'comprisinga pivoted cutter bar lying above the bottom of saidguiding means, and means for disposing said bar in a plane be neath said guiding means in positions wherein itspivot is respectively in front and rearward of the forward end of said guiding means. 7 p 88. In a mining apparatus, a truck, guidingmeans thereon, cutting apparatus movable relative to said guiding means during cutting comprising a pivoted cutter bar lying below the bottom of'said. guiding means, and means for disposing said bar in a plane above said guiding means in positions wherein its pivot is respectively in front and rearward of the forward end of said guiding means.

39. In a mining apparatus, 'a truck, guiding means thereon,,cutting apparatus movable relative. tosaid, guiding mean-s during cutting comprising a pivoted cutter bar, and means for selectively disposing said bar in a plane below said guiding means or in an intersecting vertical plane, the bar pivot in ither position of said bar being disposable rearward of the forward endof said guiding means or in advance thereof.

40. In a mining apparatus, a truck, guiding means thereon, cutting mechanism movable rectilinearly relative to said. guiding means comprising a pivoted cutter bar and a driving motor therefor, and means for adjusting said bar by power fromsaid motor bodily angularly about an axis extending longitudinally of said guiding means selectively into different ones of a plurality of intersectingpl'anes.

ll. In a mining apparatus, a truck, guiding means thereon extending beyond the front end thereof, cutting mechanism movable over said guiding means to the front end thereof and comprisinga cutter bar, and means, for disposing said bar in a plane below said guiding means. I

42. In a mining apparatus, a truck, guiding means thereon-extending beyond the front end thereof, cutting mechanism movable elative to said guiding means to a position beyond the front end of said truck and coming means longitudinally of ithe, atterhinf prising a frame and a cutter bar pivotally connected to said frame, means for disposing said bar in a plane below said guiding means, and means for swinging said bar in said plane.

43. Ina mining apparatus, a truck, par; allel guiding means thereon extending sub stantially beyond the front end thereof, said truck providing during transport the entire support for said guiding means, cutting mechanism movable relative to said guiding means and comprising a frame and a cutter iar pivoted thereto, a motor on said frame, means for disposing said frame and motor on the front end of said guiding means in a position wholly beyond the front end-ofsaidfl truck, and means for swinging said bar about its pivot when said frame is so disposed. 44. In a mining apparatus, a truck, par allel guiding means thereon extendin sub stantially beyond the front end thered said truck providing duringtransport the entire support for said guiding; means,, cutting mechanism movablerelative to said guiding means and comprising a frame .andra cutter bar pivoted thereto, a motor on said frame, means for disposing said frame and motor on the front end of saidguiding'meansin a posi-; tion wholly beyondv thefront end, of said truck, means for swinging said bar about. its pivot when said frame is so disposed, and means for moving said bar longitudinallylof said guiding means. a l

45. In a mining ap aratuaa truk, yerti cal-ly disposed longitudinally extending-guid ing meansthereon, cutting mechanism mova-v ble relative to said guidingmeanscomprisin a cutter bar, and means for disposingsaid bar in a plane below said guidingmeansgijn, a positionwherein the projections of. said bar and guiding means on a horizontal plane will intersect.

46.1n a minin apparatus, a truck, vertically disposed substantially hor-izontallyjextending guiding means, thereon, cutting mechanism including a motor inovablemela-y tive to said guiding meansv comprising a nutter bar, and means operable by "said-motor for selectively disposing-said bar in a plane below said guiding'means or in'an intersecting plane.

47. In, a mining apparatus, a truck, guid ing means thereon, cutting mech anismgim eluding a motor-movablerelative to said gui eluding a cutter bar, means operablehyrsa d motor for disposing said bar in a planwbelow said guiding means,- and means for-vary ing the position of saidebarwhensoc-disposed relative to saidtru'ck.

48; In a mining apparatus, a triuckygaids ing means thereon, cutting mechanism l n'ava ble relative to said 5 guiding means; flongitudir nally of the latter including a-mot r drn ing a cutter bar, means for disposing said bar in a plane below said guiding means, and means operable by said motor for Varying the angle of the plane in which said bar lies when so disposed relative to said truck.

49. In a mining apparatus, a truck, guiding means thereon, cutting mechanism movable relative to said guiding means including a motor driving a cutter bar, motor operated means for disposing said bar in a plane below said guiding means at will, and motor operated means for elevating the front end of said bar relative to the horizontal.

50. In a mining apparatus, a wheeled truck, a platform pivoted thereon on a horizontal pivot, cutting mechanism on said platform including a motor and an operatively connected cutter bar, said cutting mechanism be ing rotatable as a whole about an axis perpendicu ar to said platform and said cutter bar being swingable about a spaced parallel axis, truck driving mechanism including a motor, and means operatively connected to the second of said motors for tilting said platform about its pivot.

5i. In a mining apparatus, a wheeled truck, a platform pivoted thereon upon a'horizontal pivot, cutting mechanism on said platform including a swingable cutter bar having an axis of pivotal movement whose projection in the plane of the platform falls outside the boundaries of the latter, truck propelling mechanism, mechanism for tilting said platform about its pivot, and power means for effecting operation of said several mechanisms.

FInamining apparatus, a Wheeled truck, a platform pivoted thereon, vcutting mechanism on said platform including a frame and a cutter bar, said bar having a pivotal mounting providing for swinging movement of the bar about an axis whose projection on the plane of the platform falls outside the boundaries of the latter, truck driving mechanism including a motor, and means operatively connected to said motor for tilting said platform about its pivot.

In a mining apparatus, a frame, a motor carried thereby, means for feeding said frame relative to a working face driven by said motor, and cutting mechanism including a cutter bar pivoted to swing about an axis perpendicular to its plane of cut, means for supporting said cutter bar for swinging movement in intersecting planes including a support for said bar on which the latter is pivotally mounted, said support being pivotally mounted for rotation about an axis perpendicular to the. axis of swing of said bar, and mechanism driven by said motor for swinging said bar about its pivot and for moving said support about said second mentioned axis to change the plane. of cut of said bar.

54 In a mining apparatus, a motor, means for feeding said motor relative to a working facev including feeding means driven by said motor, and cutting means including a support rotatable about a horizontal axis, a cutter bar pivotally mounted on said support for swinging movement about an axis perpendicular to the axis of rotation of said support, but spaced longitudinally of said second mentioned axis from said first mentioned axis, and means driven by said motor for effecting movement of support about its axis or swing of said bar about its axis.

' 55. In a mining apparatus, a frame, a motor supported thereon and having a power shaft rotatable on a horizontal axis arranged longitudinally of said frame, frame moving means including elements adjacent either side of said frame and rotatable on axes parallel to a single line and operative on rotation to effect translation of said frame and driving means operative to effect rotation of either of said elements in either direction including operative connections including a plurality of clutches between said elements and said motor, and cutting mechanism carried by said frame and driven by said motor including a pivoted cutter bar operative to cut in a vertical plane.

56. In a mining apparatus, a frame, a motor supported thereon and having a power shaft rotatable on a horizontal axis arranged longitudinally of said frame, frame moving means including elements adjacent either side of said frame and rotatable on axes parallel to a single line and operative on rotation to effect translation of said frame and driving means operative to effect rotation of either of said elements in either direction including operative connections including a plurality of clutches between said elements and said motor, and cutting mechanism carried by said frame and driven by said motor including a pivoted plane cutter bar adjustable into and operative to cut in a horizontal or in a vertical plane.

57. In a mining machine, a truck longitudinally disposed guiding means sWiveled thereon, cutting means movable longitudinally of said guiding means and including a motor and a pivoted cutter bar, and means whereby the pivot of said cutter bar may be bodily rotated by power from said motor to position said pivot in parallelism with diiferent sides of an angle.

58. In a mining machine, a truck, longitudinally disposed guiding means swiveled thereon, cutting means movable longitudinally of said guiding means and including a motor and a pivoted cutter bar, and means whereby the pivot of said cutter bar may be bodily rotated to position said pivot in parallelism with different sides of an angleor bodily translated rectilinearly by power from said motor.

59. In a mining machine, a frame, a bracket carried thereby, a swinging cutter bar, means for pivotally supporting said cutter b-arufor swing-in movement relative to said bracket about an axisperpendicular to the plane-20f cut of said bar, and' cooperating means: carried by said bracket. and said. bar; for. transmitting a bar swinging torce tothe latter at a point between its pivot and the extremity of its cutting portion, said means carried bysaid bar comprising an arcuate rack and said means carried by saidbracket including a rotatable element. meshing with said rack and disposed between the outer end of the harand the pivot of. the latter when the bar: is iniits median position.

(id-In. a mining machine-,a sup-port, cutting mechanism thereon.including-a swiveled cutter barEca-rrying a cutter chain, said bar: being. adjustable bodily intopositions to cut in different ones of a plurality of" intersecting planes all of which are parallel to single line, a motor-for operating said cuttor. chain, means 'opera-bleiby said motor to efi'ectzsaidbodily movement of said bar to thedesired plane-and to swing said bar in any plane to which, it maybe moved, and means effecting bodily rectilinear movement .of' said bar in the direction of said linein the different planes ofadjustment thereof.

6h In a miningrmachine, a support, cutting; mechanism-thereon including a swivcled. cutter'bar carrying a cutter chain, said barbeing adjustable bodily into-positions tocutin differentoncsof a plurality of inter-- sectingplanes all of which are parallelto a single line, a motor for operating; saidcutter chain, means operableby said motor to effect said bodily movement of said bar tothe desired plane and to swing saidbar in any plane to which it maybe moved. and-means to effect bodily rectilinear movement of said bar in the direction of said line at a plurality of speeds in the planes towhich the same may be adjusted.

62. In a mining machine a support cuttin g mechanism thereon includinga siviveled cuttenbar: carrying a cutter cha in said ba-r being adjustable bodily into positions to out indifferent onesof a plurality of intersecting'plancsallof which are parallel to a single line a motor for operatingsaid cutter chain, means operable by said-motor to effect said bodily movement of said. bar the desiredplane and to swing saidirbar-inany plane to-wh=ich it may bemovedan d means operable bysaid motor to effect bodily rectilinear movement parallel to said line in opposite directions of said bar While said cutter chain is :operated inwthe same direction bysaid motor.= 1

63. In a mining; machine, a support. critting: mechanism thereon. including asWi-veled cutterbarcarrying a cutterchain,-said bar being adjustable bodily into positions to out indifferent ones of a plurality of intersect ing planes allsof which areparallel to a single line, a motor for operating said cutter v chain, !1 and means: operable by sa-id, motor .to effectsaid bodily-movement.- of said bar-to the desired plane to move said barbodily rectilinearly in such plane, to-swing thesame therein and to retract thexsame tolefie-ct the formation such plane of" a parallelribbed ke-rliof greater. width than the Wldtlli. of said par and Whose ribs are. parallel to said. single mes;

64L. In a mining machine la support, cuts ting mechanism thereon including a swiveled. cutter bar carrying a cutter chainpsaidbar; being adjustable bodily into positions tor out in different ones oft-a plurality of intersects. ing planes all of which are parallel to a single line, a motor for. operating said cutter chain, andmeans operableby said motor. to effect-said bodilyvmoVement-of said barito the desired plane-,. tommove isaid.-ubar bodily rectilinearlyin such plane to swingithe same therein, and to retract I the same .toieffectthe formation-in such plane ota parallel ribbed ke-rf o-f'. greater-width thanthe lengthrof said bar and Whose ribs are parallel toisaid single line,

65. In a mining apparatus, supporting bodily vrecti-linearly. of the: .trackvvay, ahofutitsvpivotin thezsame plane, and ifeversely rectilinearly of the trackvvay to insert. a parallel ribbed kerfina face. in front of the ends. of .the .trackway and self-contained means; operated by said. motor..to,..1n0ve said baiubodily. about an axis .extencli'ng..,longi; tu dinal ly of the. .traclcway. selectively. into di-fferentintersecting planes in each of which said movements may be. effected. I

66.111 'a. mining apparatus, supporting means movable on a trackivay, cutter mechanism thereon comprising a. pivotally mount.- ed cutter bar having; a chain adaptedtocut a kcrf' forsaid bar in. a. face-When said bar is presented edgewise thereto,. seltcontained. power. operated means. for moving said bar. bodily rcctilinearlv .in a path extending. longitudinally of: the. .tracluvay but making an; angle therewith, about its pivotrinlthe'. same plane and reverselylrect' nearlyinits. path of rectilinear movement, touinsertta p agrallell ribbed kerf'ina face in. front. of; the end 0st,,thel trackway. and self-contained means operated bysaidlmotor to movesaid bar bodily aboutan axis. extending, longitue dinallyiof the .trackway selectively into different intersecting planes in, each. of WlllGll said. Increments may be effected. v

67. In. a: mining apparatus, a wheeled truck mounted. on a tra-ckway., cutter meolr anismwthereoni.comprising a-motor and a pivotal-1y mounted. i cutter chain; carrying cutter bar, a self-contained power operated mechanism supported by said truck for moving said bar either angularly across the end of said truck or longitudinally relative to the trackway at a feeding speed to out either a right angle or a parallel face, and self-contained motor operated means for bodily adjusting said bar about an axis extending longitudinally of the tracliway and intermediate the sides thereof.

68. In a mining apparatus, a wheeled truck movable on a traclzway, cutter mechanism thereon comprising a motor and a pivotally mounted cutter chain-carrying cutter bar adapted to swing across the end of the truck, self-contained power operated mechanism supported solely by said truck for moving said bar angularly relative to said trackway and reversely longitudinally relative thereto during cutting, and self-contained motor operated means for bodily adjusting said bar about an axis extending longitudinally of the trackway and intermediate the sides thereof.

69. In a mining apparatus, a wheeled truck movable on a trackway, cutter mechanism including a cutter bar disposable in fixed relation at acute angles to the trackway and pivotally mounted on said truck, selfcontained power operated means supported on said truck for moving the bar when so disposed rectilinearly in a path extending longitudinally of the trackway but making an angle with the plane of the latter, relatively transversely in the same plane, and reversely rectilinearly to form a parallel ribbed kerf of a depth substantially equal to the length of the bar and in the face in front of the end of the trackway, and means, self-contained and power operated, for changing the plane of the kerf and operative to move said bar bodily about an axis extending longitudinally of the trackway and disposed in a vertical plane extending between the sides of the trackway.

70. In a mining machine, a support, cutting mechanism thereon including a swiveled cutter bar carrying a cutter chain, said bar being adjustable bodily into cutting position in different ones of a plurality of intersecting planes, a motor for operating said cutter chain and having driving pinions at opposite ends thereof, means operable by said motor to effect said bodily movement of said bar to the desired plane and to swing said bar in any plane into which it may be moved, and to effect bodily rectilinear movement of said bar in the planes thereof, said bodily rectilinear movement effecting means and said bar swinging means being actuated by pinions at opposite ends of said motor.

71. In a mining machine, a support, cutting mechanism thereon including a swiveled cutter bar carrying a cutter chain, said bar being adjustable bodily into cutting position in different ones of a plurality of intersecting planes, a motor for operating said cutter chain and having driving pinions at opposite ends thereof, means operable by said motor to effect said bodily movement of said bar to the desired plane and to swing said bar in any plane into which it may be moved, and to effect bodily rectilinear movement of said bar in the planes thereof, said bodily rectilinear movement effecting means and said bar swinging means being actuated by pinions at opposite ends of said motor, and said pinions rotating on an axis extending longitudinally of said support and said bar swinging means being actuated by said pinion which is nearer to said bar.

72. In a mining machine, a wheeled support, longitudinally extending vertically disposed guiding means thereon, a motor reciprocable in said guiding means between the top and bottom thereof and between the ends of said guiding means, motor reciprocating means, and cutting mechanism operatively connected to said motor including a forwardly extending horizontally disposed pivoted cutter bar.

7 In a mining machine, a wheeled support, longitudinally extending guiding means arranged thereon in a Vertical plane, a motor reciprccable relative to said guiding means between the top and bottom thereof and between the ends thereof, motor reciprocating means, and cutting mechanism operatively connected to said motor including a forward ly extending vertically disposed pivoted cutter bar and means operable by power from said motor for swinging said bar about its pivot.

7a. In a mining machine, a support, longitudinally disposed guiding means thereon, a motor reciprocable relative to said guiding means and between the ends thereof, cutting mechanism operatively connected to said motor and including a longitudin ally extending pivoted cutter bar, means for rotating said bar bodily about a longitudinally disposed axis, means for swinging said bar about its pivot, and means for reciprocating said motor relative to said guiding means incuiding mechanical driving connections between said motor and said guiding means.

75. In a mining machine, a wheeled sup port, longitudinally extending guidin g means thereon, a motor reciprocable between the ends of said guiding means, motor reciprocating means including a rotatable element movable bodily with said motor and a cooperating element fixed relative to said guiding means and with which said rotatable element cooperates to effect motor movement, and cutting mechanism operatively connected to said motor including a forwardly extending vertically disposed horizontally pivoted plane cutter bar.

76. In a mining machine, a wheeled sup- 

